Home / 11,440.03-17,165.93-8,665.78

Finding the Fourth Proportional to 11,440.03, 17,165.93 and 8,665.78

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Solution

The fourth proportional to 11,440.03, 17,165.93 and 8,665.78 is: 13,003.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.03 : 17,165.93 = 8,665.78 : x
  2. Step 2: Convert to fraction form
    11,440.03/17,165.93 = 8,665.78/x
  3. Step 3: Cross multiply
    11,440.03x = 17,165.93 × 8,665.78
  4. Step 4: Simplify right side
    11,440.03x = 148,756,172.88
  5. Step 5: Solve for x
    x = 148,756,172.88/11,440.03
  6. Step 6: Final answer
    x = 13,003.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.